If tested regularly and monitored over time, an LH test can help with ovulation tracking. If you are trying to conceive, becoming familiar with your ovulation patterns can be useful information for identifying your fertile window.
During a typical menstrual cycle, LH levels are highest just before ovulation. This surge triggers the release of an egg from the ovary, then levels decrease after ovulation and remain low during the luteal phase.4 Hormone levels may fluctuate widely throughout the menstrual cycle. Understanding these fluctuations can be helpful for tracking ovulation patterns.
If you have irregular cycles, your LH surge may be less predictable, making it more difficult to track ovulation.
However, if you have irregular cycles, your LH surge may be less predictable and difficult to identify.